The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2005
Filed:
Jun. 21, 2002
Eisuke Kanzaki, Fujisawa, JP;
Manabu Kodate, Yokohama, JP;
Eisuke Kanzaki, Fujisawa, JP;
Manabu Kodate, Yokohama, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
To easily reduce the occurrence of uneven luminance or flicker in a screen without any manufacturing or cost problems. An output potential waveform outputted from a switching unitof a gate driver ICto a scanning line G is set to have a first waveform having a potential for turning on a switching elements set as its amplitude, and a second waveform connected to the first waveform and oscillated within a period shorter than the second waveform with amplitude smaller than that of the first waveform. Thus, a falling waveform of a scanning signal to be supplied to the switching elements through the scanning line G is inclined beforehand, nonuniformity of the inclination of the falling waveform of the scanning signal supplied to each of the switching elements is reduced, and the occurrence of uneven luminance or flicker in the screen is suppressed.